2720164108761 has 32 divisors (see below), whose sum is σ = 4396973155200. Its totient is φ = 1648303683840.

The previous prime is 2720164108709. The next prime is 2720164108763. The reversal of 2720164108761 is 1678014610272.

2720164108761 is a `hidden beast` number, since 27 + 201 + 6 + 410 + 8 + 7 + 6 + 1 = 666.

It is not a de Polignac number, because 2720164108761 - 2¹⁴ = 2720164092377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2720164108763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 974845 + ... + 2527973.

It is an arithmetic number, because the mean of its divisors is an integer number (137405411100).

Almost surely, 2^{2720164108761} is an apocalyptic number.

It is an amenable number.

2720164108761 is a deficient number, since it is larger than the sum of its proper divisors (1676809046439).

2720164108761 is a wasteful number, since it uses less digits than its factorization.

2720164108761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1559046 (or 1559040 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 45.

The spelling of 2720164108761 in words is "two trillion, seven hundred twenty billion, one hundred sixty-four million, one hundred eight thousand, seven hundred sixty-one".